Look like this is an issue of graphic driver (amdgpu). Please do a test: add nomodeset in the boot parameter from grub, then boot the system. Make sure the X11 is working in framebuffer mode. (lsmod | grep amdgpu; make sure the amdgpu is not loaded).
Then test if it still hang randomly. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1801573 Title: pc randomly freeze Status in linux package in Ubuntu: Confirmed Bug description: pc with ubuntu 18.04 randomly freeze and i'm forced to turn it off. This often happens while playing VLC ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-38-generic 4.15.0-38.41 ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18 Uname: Linux 4.15.0-38-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: plraska 8379 F.... pulseaudio /dev/snd/controlC0: plraska 8379 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Sun Nov 4 08:23:54 2018 InstallationDate: Installed on 2018-10-03 (31 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: HP HP Laptop 15-db0xxx ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic root=UUID=c1c43279-03a7-4d7e-8b7e-9b999190af0a ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-38-generic N/A linux-backports-modules-4.15.0-38-generic N/A linux-firmware 1.173.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/26/2018 dmi.bios.vendor: Insyde dmi.bios.version: F.03 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 84AE dmi.board.vendor: HP dmi.board.version: 86.19 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.03:bd04/26/2018:svnHP:pnHPLaptop15-db0xxx:pvrType1ProductConfigId:rvnHP:rn84AE:rvr86.19:cvnHP:ct10:cvrChassisVersion: dmi.product.family: 103C_5335KV HP Notebook dmi.product.name: HP Laptop 15-db0xxx dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801573/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp